<template>
    <div class="list" ref="wrapper">
       <div>
           <div class="area">
             <div class="title border-topbottom">
                 当前城市
             </div>
             <div class="button-list">
                     <div class="button-wrapper">
                         <div class="button">{{this.city}}</div>
                     </div>
              </div>
         </div>
         <div class="area">
             <div class="title border-topbottom">
                 热门城市
             </div>
              <div class="button-list">
                      <div class="button-wrapper" v-for="item of hot" :key="item.id" @click="handleCity(item.name)">
                         <div class="button">{{item.name}}</div>
                     </div>
                 </div>
         </div>
         <div class="area" v-for="(item,key) of cities" :key="key" :ref="key">
             <div class="title border-topbottom" >{{key}}</div>
             <div class="item-list" v-for="innerItem of item" :key="innerItem.id" @click="handleCity(innerItem.name)">
                 <div class="item border-bottom">{{innerItem.name}}</div>
              </div>
         </div>
       </div>
    </div>
</template>

<script>
import BScroll from "better-scroll";
import {mapState} from 'vuex'
export default {
  name: "CityList",
  computed:{
    ...mapState(['city'])
  },
  props: {
    hot: Array,
    cities: Object,
    letterData: String
  },
  methods:{
    handleCity(city){
      /*this.$store.dispatch('changeCity',city)*/
      this.$store.commit('changeCity',city)
      this.$router.push('/')
    }
  },
  watch:{
      letterData (){
          if(this.letterData){
              const element = this.$refs[this.letterData][0]
              this.scroll.scrollToElement(element)
          }
          console.log(this.letterData);
      }
  },
  mounted: function() {
    this.scroll = new BScroll(this.$refs.wrapper,{click:true});
  }
};
</script>

<style lang="stylus" scoped>
@import '~styles/public.styl';

.border-topbottom {
    &:before {
        border-color: #ccc;
    }

    &:after {
        border-color: #ccc;
    }
}

.border-bottom {
    &:before {
        border-color: #ccc;
    }
}

.list {
    overflow: hidden;
    position: absolute;
    top: 1.58rem;
    left: 0;
    bottom: 0;
    right: 0;
}

.title {
    line-height: 0.54rem;
    background: #eee;
    padding-left: 0.2rem;
    color: #666;
    font-size: 0.26rem;
}

.button-list {
    overflow: hidden;
    padding: 0.1rem;
    padding-right: 0.6rem;
}

.button-wrapper {
    float: left;
    width: 33.33%;
}

.button {
    margin: 0.1rem;
    padding: 0.1rem 0;
    text-align: center;
    border: 0.02rem solid #ccc;
    border-radius: 0.06rem;
}

.item-list .item {
    line-height: 0.54rem;
    color: #666;
    padding-left: 0.2rem;
}
</style>
